magnetic resonance imaging

By Brianna McClure

What is Magnetic Resonance Imaging?

Magnetic resonance imaging (also known as MRIs) is a preferred technology equipment that is able to produce clear images of soft tissues in human or animal bodies. MRIs are able to collect information on body fluids, brain and nerve tissues and soft tissues. This equipment has also been successful in identifying heart diseases, tumours and brain disorders. Recently they have been used to get an understanding on how the brain functions.

When, Who and how was the MRI invented?

The MRI was invented by Paul Christian Lauterbur and Peter Mansfiel. For this invention, these discoverers have been awarded 6 Nobel Prizes in Medicine, Chemistry and Physiology. The MRI is one of the newest medical imaging instruments available.

MRI was developed from the idea of Nuclear magnetic resonance spectrum (NMR). NMR is a technique that was used in the 1950s to identify molecules. The similarities between the NMR and MRI is that they both contain tiny magnetic fields. The magnetic fields identify the difference between different tissues types from the inside of the body. When the MRI was first used in medicine it was called nuclear magnetic resonance imaging. The word nuclear had to be abandoned because it was known as ionizing radiation, which is very dangerous. The MRI doesn't contain any high energy radiation.

How does it work?

An MRI scan usually last around 30-45 minutes, but it can very depending on the amount of body parts being examined.

MRI uses a combination of strong magnetic fields which is passed onto an electric current through wire loops. Whilst this is happening radio waves are being absorbed by the protons in the body. The protons are producing energy. The energy is released and is then picked up by the current, which transfers it to the computer to produce detailed images of the body's insides. This operation is done without using any harmful radiation.

Big image

How has this technology benefited people or the society?

Others have benefited from this technology because there has been the option available to them, other then having to go under operation to find out what is wrong with them. All they have to do now it sit in a little bed for a few minutes, maybe listen to some music to kill time, and this machine will find out what the problem is.

Common things this process is used for:

* Spine, joint or muscle problems

* Abdominal tumors

* Brain tumors

* Breast cancer

* Heart or blood vessel problems

You should tell the nurse or doctor if you have, are or suffer from:

* Pasemaker

* Implants

* Metal plates, pins, screws, staples

* Tattoos

* Claustrophobia

* Pregnant or think you are.

Article - MRI Made easy

The article I have found is from a radiology clinic in the St John of God Hospital.

The article is dedicated to anyone who wants to tech medicine and anyone who finds it difficult to understand about how the MRI works. In 97 pages this articles describes how the MRI works, what is does, and what happens to your body when you are in the machinery.

Bellow I have come up with 5 simple steps that the article has informed me on how the MRI works.

1. The patient is placed inside the machinery.

2. Radio waves are transmitted into the body.

3. The waves collect data from the body.

4. The body sends the signals to the computer

5. The computer produces an image.


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Schild, Hans. MRI Made Easy. Berlin: H.Heenenmann GmbH&Co, 2012. Print. 25 May 2013